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HP -22S Owner's Manual Page 168

Scientific calculator.
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Example: A Local "Flat" Region.
Find the root of the equation:
x - I
X
10
100 =
0
SOLVE Equation: X-I E 100=0
Keys:
Display:
Description:
1 ISTO\ X
No root found using
2.lsOLVEI
NO ROOT FND
guesses 1 and 2.
@]
2.0000
Displays final estimate
of x .
• 1
LAST
I
-1.0000E 100
Value of f(x) at x=
2.
1
I!i:J
1
STO I X
No root found.
2
I!i:J
.1
SOLVE \
NO ROOT FND
@]
-2.0000
Final estimate and f(x).
.1
LAST I
-1.0000E 100
f(x)
x
-2
-1
1
2
3
f(x)
=
x -
1
X
10
100
168
B: More About Solving Equations

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